Double hung window sash and frame construction



.July 16, 1935 E. MOLL ADOUBLE HUNG WINDOW SASHV AND FRAME CONSTRUCTION Filed sept. 2o, 1932 2 sheets-sheet 1 falwl/'n Gttorneg *.uly 'l6, 1935. E.. MoLl.

DOUBLE HUNG WINDOW SASH AND FRAME CONSTRUCTION Filed Sept. 20, 1932 2 Sheets-Sheet 2 m m m MM M L J 1 .m 4 w L la 7 Z 7 n Mf/V 4 f J a z f 7/ Pf/// /////V/ u. ////f//// f Pl.. L 4I lllll JEM 0 /Z /6 5 MM 4W, 4h 5 Z Z. Z 3 Z f f f f v v7//| ////////////////7/// f//H l M 1 4 4L 1 IW w/ v// ////////////////////m |29 o/L E Patented` July 16, 1935 www DOUBLE HUNG WINDOW SASH ANDFRABIE c CONSTRUCTION Edwin Moltrortlana, oeg.

invention relates to window frames .and s'ashes.A Itis particularly adapted for use'upon what is known -to the trade as double hung sashes,

each of which is adapted for being moved in a` '"5 vertical planewithin denite guideways.

* v Heretofore, it has been the general custom in Window frames and sashes of this kind' to balance thewindows through the use of cords, pulleys and counterweights. This is not only expensive but requiresY time to install and expense in the materials usedin this classof construction. This form of construction also has the disadvantage of the nnal wearing ofthe cord to destruction which requires the dismantling of the entire frame to reestablish the counterweights. Through the use of my new and improved construction I dispense entirely with countereweights as commonlyused in window construction and secure a suitable chain at its opposite ends to the respectiveiside walls of the sash whereby the windows themselves function as counter-weights, `and Ifurtherprovide a yieldingly mounted pulley for thechain for taking up the counter balancing weight required to facilitate the east7 movement. 1 Ialso provide, in my construction, the essential elements for maintaining the sashes in an airtight condition relative to the frames to thereby` eliminate the necessity of weather stripping. One of the primary objectsof my invention is to provide a simplified construction for use upon .double hung windows. f

A still `further object of my invention consists inproviding Vmeans for supporting and maintaining double hung windows within their frames,

at less expense.V

.A still further object of my invention consists in providing a doublehung window and frame assembly .that may be assembled with the expenditure of less labor than has heretofore been accomplished. i Anda still further object of my invention consists in the development of a double hung window `"and frame, that can be made relatively air-tight at thevtime of assembly, to thereby eliminate the necessity of weather stripping the same.

in so constructing a double hung window and `frame assembly that itwill have a long, useful life and.` one that is practically free from operating mechanicalannoyances.

With these `and'incidentalolojects in view, the .invention 'consists in certain novel features of construction'land combination of parts, `the esindicated; i Like .reference characters refer `throughout the several views.

Application september zo, issaseriaiNo. 633,986

z claims. (o1. 164-197) comprised of an upper and a lower sash, each sash being shown in its normalV raised and lowered position. i

Fig. 2 is a front view oi a double hung window illustrating the upper sash as being in full raised position and the lower sash as beingin a partially raised position. 'l

Fig. 3 isa front View of a double hung sash Window illustrating the upper sash `as being par. tially lowered and the lower sash as beingv partially raised. `v v Fig. 4 is a fragmentary, sectional, side view of the sash and vframe. This View is taken on line 4--4 of Fig. 10, looking in the" direction indicated. Fig. 5 is a perspective, side 'view "of one ofthe end fasteners adaptedfor being raised and lowered into the groove and to which the supportin chain or cord is secured upon its one end. Fig. 6 is a sectionaLend view, ofthe sash; 'the guideways and of the frame. Thisview is taken online 6--6 of Fig.l 4, 4looking in the :direction indicated. i l

Fig. `7 is a fragmentary, sectional, end view of the mechanism illustrated in Fig. 4L `This View is taken on line 1--1 of Fig. 4, lookingin the direction indicated.

Fig. 8 is a fragmentary, sectional, side view of the mechanism illustrated in Fig. Al0. This view of Fig. 10,`1ooking in the direction indicated.

Fig. 9 is a'fragmentary, sectional, end view, of the sash `and guide strip associated therewith and of the framef f Fig. l0 is a sectional, side view, ofthe assembled frame and sash illustrating the top sash as being partially lowered andthe lowersash' as `being partially raised. This view is taken online Fig; 3, looking in the 'direction indi- `frame illustrating the top and bottom sash as being fully raised `and fully lowered. This view is taken on line lI-ll of Fig. l, looking in the `directihn indicated. A A still further object of my invention consists Fig. 12 isasectional, side'view ofthe sash and frame, illustrating thetop sash'raised .and the vlower sashT partiallyraised.. 'This View is taken on line l2-l2 `of Fig.-2, looking inthe` direction to like parts l i's the `sill ofthe window'frame. `2 is the cap ofthe window frame. i3 and 4 are the' window `frame posts. i 5 is the topI sash of the window and Ei is the bottom `sash of the window.` i

I cut out portions of the posts 3 and 4 torform parallelly disposed grooves," here shown as'two in .numberjand illustrated at l and .A z Thegrooves 'aregin alignment with the postengaging'faces I provide sullicient clearance between theshank I3 of the T-shaped strip and the sashes to allow their free movement up and down.

I alsol place strips, preferably vvmadefof hard wood as illustrated at I4 and l5 in each of the outer edges of each of the sashes and permit the: sametorextend within" .the grooves and to .entirely ll fthe lspacci between thev T-shaped strip and the faces I6 and I1 of the respective grooves VLand 8. f Lalso place agroove l18; in :the top cross member o1'. the -top sashand I place a strip of material il! within the cap 2, so that a relatively air-tight connection maybe formed. between `the top sash and theVV frame` when the top sashis fully raised.

i IliormA agroove 20 in the top side-of the sill and place a window strip 2| within the groove. The f'window, stripfis inzalignmentwith a slot 22 formed in rthe bottom `ofthe lower sash to render ltheizsamev relatively'air-tight when the bottom sash is fully lowered and the window strip is pro- .iected into the vslot 22.

Aneye bolt is secured to the top plate,.having ac'oil Vspring 24 secured rthereto. The oppositely disposed end. of the coil spring is securedto the yokei. Theyoke. 25 lhas a pulley 26 journaled relative theretoiandabout whichv a chain or cord lzistrained. One end` of the cord is vfixedly secured to the lower end of the bottom vsash and 'thexopposit'ely'disposed endof the chain or cord `isrsecured to the bottom Aside ofthe upper sash. xSimllarchain, pulleyand .springfassemblies are disposed at each side of the window casing.

To.facllitate-the fastening of the chain to the respective sash memloersI provide a fastening, as illustrated inFig. 5. 'I'his member is preferably made of sheet metal folded-upon itself to Vform sparallellydisposed side walls 28 and 29. Fastening lteeth 30 andr 3! are -formed integral with the respective side members 28 and ."il. 'Iheselocking kteeth are preferably disposed substantiallyatftheibottom end of each of the side Awall'fmembers and are aredoutward, as illustra'ted in Theloutside spacing of the side w'alls 2B. and 29 are made to substantially lill the space disposed between the outer ends of Iheads :H and `I2 of the T-shaped member Ill and .the inner surfaces land I1 of the grooves dis- `posed longitudinally of the inner surface of the post.

The supporting member isinserted within the islot and driven Uin until it occupies: the dotted position, as `illustrated-in Fig. 8.

A means for attaching the chain or chord is :formedawithin the U-shapedv portion of the fastening member and is illustrated in Fig. 5 at 32. vIn order to maintainv an air-tight relationship within the slots I secure a' felt or other com- `pressible member'334 to the body of the device, asillustrated in Fig. 5, which 'is of substantially `the same size as a horizontal section of the groove and forms an air-tightstop within the grooves yI :and 8'. The ryoke 25 is adapted to` be ver- 11ticia;ll'y:moved through a slot 34 disposed within therespe'ctive posts. The pulley 26 isxjournaled about'the-leg 33M the yoke 25. 1A 'shroud for the pulley is formed by securing a pair of ears to the upper leg of the yoke 25 and permitting them to straddle the pulley as the legs of a pulley block would, assuming the leg 36 to be the pulley shaft. A closure plate 38 is carried by the yoke and is adapted to engage the outer surface of the post of the window frame and to close the slot 34.

The respective plates disposed upon the oppositely disposed outer surfaces of the post are riioated upon the yokes and when the upper and lower sashes are in their normal raised and lowered position the floated plates close the slot 34.

When the assembly is complete a normal tension is placed within the respective springs disposed at the oppositely disposed sides of the frame to absorb practically the total weight of the respective sashes. This facilitates the raising and the lowering of the respective sashes.

Upon the partial raising of the lower sash, as illustrated in Fig. 2, the upper sash will remain closed until the yoke 25 reaches the top of the slot 34. Upon the further raising of the lower sash the top sash will be lowered auto matically so that the respective sashes Will occupy the position as illustrated in Fig. 3. Upon the complete lowering of the lower sash the upper sash will be automatically raised to closed position.

While I have here shown in the drawings an opening having a wooden frame disposed thereinto and into which wooden sash have been fitted I do not wish to be limited to the adaptation of my new and improved construction to wood as the same principle may be adapted to metal construction with equal facility.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to coniine the invention to the one form of embodiment herein shown and described, as it is susceptible of embodiment in various forms, all coming within the scope of the claims which follow.

What I claim is:

1. The combination with a window frame and an upper and a lower sash slidable within the frame, of fastening means secured to the post engaging edges of each sash, flexible lifting members secured at their ends to the fastening means, resilient members secured to the window frame, a pulley supporting yoke secured to the depending end of each of the resilient members, said yoke extending through a slot in the Window v Athe upper cross member of the window frame and 4contained within the frame, a pulley supporting yoke secured to the depending end 'of each reacting element, said yoke extending through a slot in the window post, a pulley secured to the outwardly protruding portion of the -yoke and .adapted for vertical movement within a groove in the outer face of the window post and flexible Vlifting members secured at their ends to the above mentioned fastening means and trained about the respective pulleys.

EDWIN MOLL. 

